perf test: Add build infra for perf test tools for ARM CoreSight tests

This adds the initial build infrastructure (makefiles maintainers
information) for adding follow-on tests for CoreSight.

Committer notes:

Remove the installation of tests/shell/coresight/*.sh, as there are no
files there yet and thus, at this point, make install fails.

Use $(QUIET_CLEAN) to avoid having extraneous output in the 'make clean'
output.

Also use @$(MAKE) in tools/perf/tests/shell/coresight/Makefile as $(Q)
is not turning into @ when V=1 isn't used, i.e. in the default case it
is not being quiet.

The >/dev/null in the all for tools/perf/tests/shell/coresight/Makefile
is to avoid this:

make[4]: Nothing to be done for 'all'.
make[4]: Nothing to be done for 'all'.
make[4]: Nothing to be done for 'all'.
DESCEND plugins
GEN /tmp/build/perf/python/perf.so
make[4]: Nothing to be done for 'all'.
INSTALL trace_plugins

On !arm64 where nothing is done on the main target for
tools/perf/tests/shell/coresight/*/Makefile.

Signed-off-by: Carsten Haitzler <[e-mail]>
Cc: Leo Yan <[e-mail]>
Cc: Mathieu Poirier <[e-mail]>
Cc: Mike Leach <[e-mail]>
Cc: Suzuki Poulouse <[e-mail]>
Cc: [e-mail]
Link: http://lore.kernel.org/lkml/[e-mail]
Signed-off-by: Arnaldo Carvalho de Melo <[e-mail]>

MAINTAINERS

···
 F:	include/dt-bindings/arm/coresight-cti-dt.h
 F:	include/linux/coresight*
 F:	samples/coresight/*
+F:	tools/perf/tests/shell/coresight/*
 F:	tools/perf/arch/arm/util/auxtrace.c
 F:	tools/perf/arch/arm/util/cs-etm.c
 F:	tools/perf/arch/arm/util/cs-etm.h

tools/perf/Makefile.config

···
 STRACE_GROUPS_INSTDIR_SQ = $(subst ','\'',$(STRACE_GROUPS_INSTDIR))
 tip_instdir_SQ = $(subst ','\'',$(tip_instdir))
 
+export perfexec_instdir_SQ
+
 # If we install to $(HOME) we keep the traceevent default:
 # $(HOME)/.traceevent/plugins
 # Otherwise we install plugins into the global $(libdir).

tools/perf/Makefile.perf

···
 $(sync_file_range_arrays): $(linux_uapi_dir)/fs.h $(sync_file_range_tbls)
 	$(Q)$(SHELL) '$(sync_file_range_tbls)' $(linux_uapi_dir) > $@
 
-all: shell_compatibility_test $(ALL_PROGRAMS) $(LANG_BINDINGS) $(OTHER_PROGRAMS)
+TESTS_CORESIGHT_DIR := $(srctree)/tools/perf/tests/shell/coresight
+
+tests-coresight-targets: FORCE
+	$(Q)$(MAKE) -C $(TESTS_CORESIGHT_DIR)
+
+tests-coresight-targets-clean:
+	$(call QUIET_CLEAN, coresight)
+	$(Q)$(MAKE) -C $(TESTS_CORESIGHT_DIR) O=$(OUTPUT) clean >/dev/null
+
+all: shell_compatibility_test $(ALL_PROGRAMS) $(LANG_BINDINGS) $(OTHER_PROGRAMS) tests-coresight-targets
 
 # Create python binding output directory if not already present
 _dummy := $(shell [ -d '$(OUTPUT)python' ] || mkdir -p '$(OUTPUT)python')
···
 		$(INSTALL) tests/shell/*.sh '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/tests/shell'; \
 		$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/tests/shell/lib'; \
 		$(INSTALL) tests/shell/lib/*.sh -m 644 '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/tests/shell/lib'; \
-		$(INSTALL) tests/shell/lib/*.py -m 644 '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/tests/shell/lib'
+		$(INSTALL) tests/shell/lib/*.py -m 644 '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/tests/shell/lib'; \
+		$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/tests/shell/coresight'
+	$(Q)$(MAKE) -C tests/shell/coresight install-tests
 
 install-bin: install-tools install-tests install-traceevent-plugins
 
···
 bpf-skel-clean:
 	$(call QUIET_CLEAN, bpf-skel) $(RM) -r $(SKEL_TMP_OUT) $(SKELETONS)
 
-clean:: $(LIBTRACEEVENT)-clean $(LIBAPI)-clean $(LIBBPF)-clean $(LIBSUBCMD)-clean $(LIBPERF)-clean fixdep-clean python-clean bpf-skel-clean
+clean:: $(LIBTRACEEVENT)-clean $(LIBAPI)-clean $(LIBBPF)-clean $(LIBSUBCMD)-clean $(LIBPERF)-clean fixdep-clean python-clean bpf-skel-clean tests-coresight-targets-clean
 	$(call QUIET_CLEAN, core-objs)  $(RM) $(LIBPERF_A) $(OUTPUT)perf-archive $(OUTPUT)perf-iostat $(LANG_BINDINGS)
 	$(Q)find $(or $(OUTPUT),.) -name '*.o' -delete -o -name '\.*.cmd' -delete -o -name '\.*.d' -delete
 	$(Q)$(RM) $(OUTPUT).config-detected

tools/perf/tests/shell/coresight/Makefile

···
+# SPDX-License-Identifier: GPL-2.0-only
+# Carsten Haitzler <[e-mail]>, 2021
+include ../../../../../tools/scripts/Makefile.include
+include ../../../../../tools/scripts/Makefile.arch
+include ../../../../../tools/scripts/utilities.mak
+
+SUBDIRS =
+
+all: $(SUBDIRS)
+$(SUBDIRS):
+	@$(MAKE) -C $@ >/dev/null
+
+INSTALLDIRS = $(SUBDIRS:%=install-%)
+
+install-tests: $(INSTALLDIRS)
+$(INSTALLDIRS):
+	@$(MAKE) -C $(@:install-%=%) install-tests >/dev/null
+
+CLEANDIRS = $(SUBDIRS:%=clean-%)
+
+clean: $(CLEANDIRS)
+$(CLEANDIRS):
+	$(call QUIET_CLEAN, test-$(@:clean-%=%)) $(Q)$(MAKE) -C $(@:clean-%=%) clean >/dev/null
+
+.PHONY: all clean $(SUBDIRS) $(CLEANDIRS) $(INSTALLDIRS)

tools/perf/tests/shell/coresight/Makefile.miniconfig

···
+# SPDX-License-Identifier: GPL-2.0-only
+# Carsten Haitzler <[e-mail]>, 2021
+
+ifndef DESTDIR
+prefix ?= $(HOME)
+endif
+
+DESTDIR_SQ = $(subst ','\'',$(DESTDIR))
+INSTALL = install
+INSTDIR_SUB = tests/shell/coresight
+
+include ../../../../../scripts/Makefile.include
+include ../../../../../scripts/Makefile.arch
+include ../../../../../scripts/utilities.mak